Two dry solids --- barium hydroxide and ammonium nitrate --- are mixed to produce an endothermic reaction. The temperature of the mixture drops approximately 45oC and is cold enough to freeze the ...
Every chemical reaction involves a change in energy because different substances hold different amounts of energy. During the reaction, bonds inside the substances that are reacting together must be ...
Whistler, R. L., and BeMiller, J. N., in Adv. Carbohydrate Chem., edit. by Wolfrom and Tipson, 13, 289 (Academic Press, New York, 1958).
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